Waterproof Display Device with Dual-Space Sealing Structure
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Solution Overview
Problem
Existing liquid crystal display devices used in outdoor equipment require additional external waterproof structures, which increase equipment cost and size, reduce cooling efficiency, and complicate fog dissipation.
Innovation Solution
A display device design that incorporates an outer frame, transparent cover, back cover, and a separating structure to create a waterproof and dustproof enclosed first space around the display module, with a connected second space for heat and water discharge, eliminating the need for external waterproof structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an additional external waterproof structure is added to prevent water from entering the display device, then waterproofing is improved, but equipment cost and size increase
Solution Approach 1:
The patent merges the waterproofing function with the existing display device structure by making the inner frame and back cover waterproof, eliminating the need for separate external waterproof structures. The display module is directly mounted on the waterproof back cover, integrating protection into the core structure rather than adding external layers.
Solution Approach 2:
The patent extracts the waterproofing requirement from the concept of external waterproof structures and implements it through the inherent design of the inner frame and back cover. The waterproofing capability is taken out from being an add-on feature and made intrinsic to the display device structure itself.
2Reliability
If an additional external waterproof structure is added, then waterproofing is improved, but equipment cost increases
Solution Approach 1:
The patent combines multiple functions (structural support, mounting, and waterproofing) into the back cover and inner frame components. By making these existing structural elements waterproof rather than adding separate waterproofing components, manufacturing complexity and cost are reduced while maintaining reliable waterproofing.
3Reliability
If an additional external waterproof structure is added, then waterproofing is improved, but cooling effect is reduced
Solution Approach 1:
The patent merges the waterproof back cover design with the cooling system by allowing the waterproof back cover to directly contact the display module's cooling surfaces. The inner frame's waterproof structure is designed to not interfere with heat dissipation pathways, enabling both waterproofing and effective cooling through integrated design.
4Reliability
If an additional external waterproof structure is added, then waterproofing is improved, but fog dissipation becomes difficult
Solution Approach 1:
The patent combines the waterproof enclosure design with fog dissipation functionality by allowing the second space to serve dual purposes: maintaining waterproof sealing while enabling air circulation for fog dissipation. The waterproof back cover and inner frame structure are designed to accommodate ventilation pathways that prevent fog accumulation without compromising waterproofing.
Data Source
AI summary
A display device includes an outer frame, a transparent cover, a back cover, a display module, and a separating structure. The outer frame has a display opening, the transparent cover covers the display opening, and the back cover is opposite to the display opening. The display module is disposed inside the outer frame and has a front surface facing the transparent cover and a rear surface facing the back cover. The separating structure is connected between the back cover and the rear surface of the display module. A first space formed between at least the transparent cover, the front surface of the display module, the outer frame, the back cover, and the separating structure is an enclosed space. A second space formed between at least the rear surface of the display module, the separating structure, and the back cover is connected to an outside and surrounded by the first space.